“ALS is a tragic disease, and I hope that the social media attention from the Ice Bucket Challenge continues to bring more awareness and donation dollars to curing ALS,” said Federer in his Facebook post. “Funny videos are entertaining, and can be important to raise awareness, but a more important measure of impact is donating: http://www.alsa.org/.

“In the spirit of the challenge, I'd like to challenge my friends Seve, Marco and Reto!”

ALS has affected the tennis family in recent years. Former ATP Executive Chairman & President Brad Drewett passed away on 3 May, 2013, after his battle with the disease, which has no cure. Former ATP pro Jerome Golmard is currently fighting the disease, and WTA staff member Angie Cunningham has also been diagnosed.